Steam-valve.



PATENTED JAN. 16, 1906.

J. D. & B. N. AUSTIN.

- STEAM VALVE.

APPLICATION FILED MAR.15, 1905.

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WITNESSES:

PATENTE'D JAN. 16, 1906.

J. D. & E. N. AUSTIN.

STEAM VALVE.

APPLICATION FILED MAR. 15, 1905.

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INVENTORS a77z e82. Majm Edward JQ ZzwZLm WITNESSES fl/ W UNITED sTA rnsPATENT orrron.

JAMES D. AUSTIN AND EDWARD N. AUSTIN, OF CAMPBELL HILL, ILLINOIS,ASSIGNORS OF ONE-THIRD TO HARVEY HOOVER, OF

CAMPBELL HILL, ILLINOIS.

STEAM-VALVE.

Specification of Letters Patent.

Patented Jan. 16, 1906,

To all whom it may concern.-

Be it known that we, JAMES D. AUsTIN and EDWARD N. AUsTIN, citizens ofthe United States, and residents of'Campbell Hill, in the county ofJackson and State of Illinois, have invented a new and ImprovedSteam-Valve, of which the following is a full, clear, and exactdescription. 1

This invention relates to improvements in valves for controlling theadmission of steam or other motive agent to an engine-cylinder, theobject being to provide a valve of novel and simple construction and bythe operation of which the ports leading to the cylinder will remainentirely open until the piston nearly completes its movement, thusresulting in an economy of power.

I/Ve will describe a steam-valve embodying our invention and then pointout the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specifica tion, in which similar characters of referenceindicate-corresponding parts in all the figures.

Figure 1 is a sectional elevation showing the valve mechanism embodyingour invention. Fig. 2 is a section at right angles to Fig. 1. Fig. 3 isa perspective view of a reversingvalve employed. Fig. 4 is a perspectiveview of the controlling or main valve; and Figs. 5, 6, and 7 aresections respectively on the lines 5 5, 6 6, and 7 7 of Fig. 1.

Referring to the drawings, 10 designates the engine-cylinder, in whichthe piston 11 operates. The opposite ends of the cylinder 10 communicatethrough ports 12 13 with a casing 14, in which the controlling-valve isarranged. This controlling valve has an oscillatory movement in a rotarydirection, and it comprises a central portion 15, which is flattened atits sides to form walls of steam-ports, the other walls being formed bythe casing 14. At the ends of the body portion 15 are segmental flanges16 17, which, as clearly indicated, extend in opposite directions, andconnected to the flanges and spaced therefrom are disks 18 19, thespaces between the disks and the flanges providing steamports.

- The valve is mounted on a shaft 20, to one end of which is attached acrank 21, designed to have a connection with an eccentric or otherdevice for imparting motion to the valve. The segmental valves and dlsksmay be provided with sultable packing-rings, as

indicated at 16 and 18 in Fig. 1.

Arranged above the main-valve casing 14 isa reversing-valve casing 22,into which an inlet-pipe 23 leads and from which exhaustpipes24 25extend. The reversing-valve 26 is similar in construction to the mainvalve, excepting that it has at its ends wing portions 27, which extendin opposite directions and are.designed to cut off one of the exhausts,while the other is open, depending on the direction in which the engineis to be operated. The reversing-valve is slightly tapered, so that itmay be moved longitudinally to take up wear.

In the operation as the parts are arranged in Fig. 1 the steam entersthrough the pipe 23 at one side of the body 26 of the reversingvalve,and then, as indicated by the arrows, to the port between the segmentalflange and the end disk, and then through a port 26 to the space betweenthe flange and disk at the right-hand end of the main valve, and fromthis port the steam passes to one side of the body of the valve andthence through the port 13 to the cylinder. The exhaust will take placethrough the port 12, the space between the flange and disk at therighthand end of the main valve, and then through a port 27 and theexhaust-pipe 25. As to the operation of the piston on its return stroke,it will be the same as that with which an ordinary slide-valve isemployed. In the reversed position the steam that has entered thecylinder will be released and live steam will enter through the portwhere the exhaust took place.

Having thus described our invention, We claim as new and desire tosecure by Letters Patent- 1. In an engine, a piston-cylinder, amainvalve casing arranged therein, a reversingvalve casing havingcommunication with the main-valve casing, a main valve in the first maincasing and having a flattened body por tion, oppositely-extendedsegmental flangesat the ends of the body portion, disks secured to andspaced from said flanges, packingrings arranged in said disks andflanges, a reversing-valve in the reversing-valve casing and having aflattened body portion, oppositely-extended segmental flanges at theends thereof, disks spaced from said flanges, and oppositely-extendedcut-off Wings arranged between the flanges and disks, the saidreversing-valve being longitudinally tapered.

2. In an engine, a piston-cylinder, a mainvalve casing arranged thereon,a reversingvalve casing having port communication With the main-valvecasing, a main valve in the first-named casing having a flattened bodyportion, op ositely-extended segmental flanges at the ends of the bodyportion, disks secured to and spaced from said flanges, areversing-valve in the reversing-valve casing havin a flattened bodyportion, oppositelyeXten ed segmental flanges at the ends thereof, disksspaced from said flanges, and oppositely-extended cut-ofl Wings arrangedbetween the flanges and disks.

In testimony whereof We have signed our names to this specification inthe presence of two subscribing Witnesses.

JAMES D. AUSTIN. EDWARD N. AUSTIN.

Witnesses:

G. M. LARK, H. SHAW.

